"To display the currently installed m920 firmware version, do the following:

1. Turn off the m920

2. Select any input except USB

3. Press and hold the encoder button down and turn on the power to the m920. The current

firmware revision will be displayed on the 7-segments"

Oro: Note, *don't keep pressing the encoder button*, just hold it down while turning the unit on, then let it go. Otherwise you will get the 0.0 + full lights situation.

Possible solutions:

1) Plug USB cable into USB 2 port rather than USB 3 port.

2) Upgrade firmware. Download drivers from site. Like Ted0, however, I do not see where 'DFU' PC utility can be had; contact Grace customer support I suppose.

http://www.gracedesign.com/products/m920/m920.htm

- - - - -

As for initial impressions ...

The thing with better equipment is that it highlights the flaws in the weakest link of the component chain, which increasingly becomes the music files themselves. For most songs, I hear no real difference between my other components (all of which are also pretty good, to be fair) and this Grace unit. It takes a really well recorded song to hear what this unit is capable of. If all you have are poorly sampled 128 kpbs mp3s, there is no need for you to get this. GIGO. You will need good music files and headphones for the Grace to stand out. Can't say it's better than my Burson Conductor (same DAC in both), but it isn't worse, either, and the BC doesn't have crossfeed, which is a large part of why I wanted the m920.